Update GitHub Actions workflows. (#336) #122

Job	Run time
prerequisites	2m 36s
License Check / License Check	1m 15s
lint / lint	23s
build_sdk (nodejs)	1m 29s
build_sdk (python)	1m 34s
build_sdk (dotnet)	1m 41s
build_sdk (go)	2m 11s
generate_coverage_data	2m 17s
build_sdk (java)	1m 42s
test (nodejs)	3m 2s
test (python)	2m 10s
test (dotnet)	2m 8s
test (go)	2m 11s
test (java)	2m 34s
publish	7m 32s
publish_sdk	3m 20s
Tag release if labeled as needs-release	2s
	38m 7s

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